文献类型：期刊文献

英文题名：Overlooked synergistic effect induced by fe-mo dual-atom catalyst in water remediation: Enhanced electron management and efficient pollutants pre-activation

作者：Huang, Yanan[1];Zhao, Yan[1];Song, Dawei[1];Shi, Yaqin[1];Chen, Huan[1];Niu, Bo[1,2];Long, Donghui[1,2];Zhang, Yayun[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Specially Funct Mat & Related Technol, Minist Educ, Shanghai 200237, Peoples R China

年份：2025

卷号：374

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20251618266961);WOS:【SCI-EXPANDED(收录号:WOS:001476836500001)】；

基金：This work was financially supported by National Natural Science Foundation of China (No. 22008073, No. 22478123) , Shanghai Sailing Program (No. 20YF1410600) , Fundamental Research Funds for the Central Universities, and Shanghai Talent Development Fund (2021021) . The authors would like to thank Shiyanjia Lab (https:// www.shiyanjia.com ) for the XPS analysis. Thanks ceshihui ( www.Ce shihui.cn) for the STEM analysis.

语种：英文

外文关键词：Fenton-like reaction; Atomic pair; Electron regulation; PMS activation; Ciprofloxacin degradation

摘要：This study uncovers a synergistic Fe-Mo dual-atom catalytic mechanism that enhances peroxymonosulfate (PMS) activation and pollutant degradation through dynamic electron management and substrate pre-activation. A nitrogen-doped carbon-supported FeMo dual-atom catalyst (FeMo/NC) was synthesized and systematically analyzed using XAFS, in situ Raman, DFT calculations, and electrochemical tests. The FeMo/NC-PMS system achieved 99 % ciprofloxacin (CIP) degradation within 10 minutes (rate constant: 0.402 min(- 1)), maintained > 90 % efficiency across pH 1-13, and exhibited minimal Fe/Mo leaching (<0.1 ppm) with 90 % retention after five cycles. Mechanistic studies revealed that Mo stabilizes Fe valence states via electron transfer, strengthens Fe-N coordination, and promotes pollutant pre-activation on Mo sites while enabling selective 1O2 generation at Fe sites. This work establishes a dual-atom design strategy to optimize electron redistribution and interfacial interactions in Fenton-like systems. The demonstrated compatibility with membrane filtration (100 % CIP removal in wastewater) highlights its potential for practical water remediation applications.